Docs fix

[FreZZZeR]

Description

Docs fix for function Set-Attachement
Added and fixed Suppress Exclusion in Invoke-WebRequest, Set-TlsLevel

Motivation and Context

Fix bugs in documentation
Fix Suppress Exclusion in Invoke-WebRequest, Set-TlsLevel

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• I have added Pester Tests that describe what my changes should do.
• I have updated the documentation accordingly.

[FreZZZeR]

@lipkau , Hello!
In Azure Pipeline we have 2 errors when testing ConfluencePS functions

Context /ConfluencePS/Private/Invoke-WebRequest.ps1
  [-] passes PSAvoidOverwritingBuiltInCmdlets 116ms
    Expected $null, but got @(1, 161).
    70:                     $BadLines | Should -Be $null
    at <ScriptBlock>, /home/vsts/work/1/s/Release/Tests/PSScriptAnalyzer.Tests.ps1: line 70

Context /ConfluencePS/Private/Set-TlsLevel.ps1
  [-] passes PSReviewUnusedParameter 26ms
    Expected $null, but got @(6, 9).
    70:                     $BadLines | Should -Be $null
    at <ScriptBlock>, /home/vsts/work/1/s/Release/Tests/PSScriptAnalyzer.Tests.ps1: line 70

I tried using both functions on Windows 10 2004 Preview on WSL (Ubuntu 18.04, Ubuntu 20.04), and on virtual machine with Ubuntu 18.04 LTS
No one error took.
Can You explain how is your test works?

[FreZZZeR]

@lipkau, I fixed all error.
I have no experience in team development using GIT.
Can you review my fixes?

[FreZZZeR]

Finally, documentation was fixed. Tests can be passed.

[FreZZZeR]

All changes has been reviewed.